(function($){
	$.fn.targetBlank = function(){
		var targetArray = ['_blank','_self','_parent','_top'];
		var target = jQuery.trim($(this).attr('target'));
		if(target == 'undefined' || target == '' || jQuery.inArray(target,targetArray) == false){
			$(this).attr('target','_blank');
		}
	}
})(jQuery);